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Search Term(s): Helianthus giganteus   (1 record found)

ASTERACEAE
Aster Family
Helianthus giganteus  (giant sunflower)   
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Synonym
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Carex Section
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Meaning of Scientific Name
Helianthus: from the Greek helios (sun); giganteus: large, gigantic
Native Plant
Yes
Life Form
Perennial Herb
Phenology (Flowering Period)
August-September
Physiographic Province
☑ Piedmont
☑ Coastal Plain

County Distribution
☑ New Castle
☑ Kent
☑ Sussex

Habitat
Roadside ditches, wet meadows, fresh water tidal marshes
State Status
Common
Piedmont Status
Common
Coastal Plain Status
Common
Global Rank
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Federal Status
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Geographic Affinity
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Species at Limit of Distribution
☐ Northern
☐ Southern

North American Distribution (Non-indigenous Species)
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Coefficient of Conservatism
3
Invasive
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Invasive Watchlist
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Global Origin (Non-native Species)
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Wildlife Values
The genus Helianthus is a possible host plant for Charidryas nycteis (Silvery Checkerspot Butterfly). In addition, H. giganteus is the host plant for the rare Papaipema maritima (Maritime Sunflower Borer Moth).
Medicinal Properties
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ID Notes
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Additional Info
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Habitats in which this plant occurs
Freshwater Herbaceous Tidal Wetlands
Freshwater Shrub Tidal Wetlands
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